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- Subject
- Operational Amplifierelectrical-engineering-mcqs › operational-amplifier
- Published
- 23 Dec 2018
- Last updated
- 28 May 2026
Explanation
In differential-mode, the inputs receive signals that are 180 degrees out of phase with each other, meaning they have opposite polarities. This allows the circuit to amplify the difference between the inputs effectively. Other options do not correctly describe differential-mode operation.
More Operational Amplifier MCQs
Practice related questions from the same subject.
- 1.An operational amplifier's output voltage rises by 8 volts over a period of 12 microseconds. What is the slew rate of the op-amp?
- 2.What effect does negative feedback have on a circuit's input impedance and bandwidth?
- 3.In a differential amplifier, the differential voltage gain is calculated as RC divided by which of the following?
- 4.In a differential amplifier, the gain for common-mode signals is given by the value of RC divided by which of the following?
- 5.How does the common-mode voltage gain compare to the differential voltage gain?
- 6.The input impedance of a differential amplifier is given by r’e multiplied by which of the following?
- 7.What is the approximate voltage at the node located at the top of the tail resistor?
- 8.What types of signals can an operational amplifier amplify?
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